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Insertion of chalcogen atoms into the gallium-gallium bonds of acetato-bridged digallanes

Title data

Uhl, Werner ; Cuypers, Lars ; Spies, Thomas ; Weller, Frank ; Harbrecht, Bernd ; Conrad, Matthias ; Greiner, Andreas ; Puchner, Mario ; Wendorff, Joachim H.:
Insertion of chalcogen atoms into the gallium-gallium bonds of acetato-bridged digallanes.
In: Zeitschrift für anorganische und allgemeine Chemie. Vol. 629 (July 2003) Issue 7-8 . - pp. 1124-1130.
ISSN 0044-2313
DOI: https://doi.org/10.1002/zaac.200300443

Official URL: Volltext

Abstract in another language

The digallium(II) compound R2Ga2(mu-OOCCH3)(2) 2 R = CH(SiMe3)(2)] has a short Ga-Ga single bond, which is bridged by two acetato ligands. Owing to the chelating coordination by both carboxylato groups the gallium atoms are coordinatively saturated and have coordination numbers of four. Treatment of 2 with chalcogen atom donors such as propylene sulfide, triethylphosphonium selenide and telluride gave the insertion of sulfur, selenium and tellurium atoms into the Ga-Ga bond. By the oxidation of the gallium atoms products resulted which have angled Ga-S-Ga-(3), Ga-Se-Ga- (4) and Ga-Te-Ga units (5) in their molecular cores. In all cases, the carboxylato ligands remain in their bridging positions between two gallium atoms. The tellurium compound 5 shows a phase transition in the solid state, which was investigated by X-ray powder diffraction and DSC methods.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: gallium; sulfur; selenium; tellurium; phase transition
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 08 Apr 2015 09:04
Last Modified: 08 Apr 2015 09:04
URI: https://eref.uni-bayreuth.de/id/eprint/9744